"The very least you expect are people with some experience and knowledge of what they're doing, " the Police Superintendents' Association's Derek Barnett told to BBC Radio 4's Today programme.

BBC: Police direct entry 'will happen'

That liability could be much higher at the most profitable firms, according to several people with knowledge of finances at some top law firms.

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"Some people's discomfort with supporting animal research signifies a broader discomfort with the goal of pursuing human knowledge and understanding", he says.

BBC: NEWS | UK | Magazine | The pro-test protesters